Base | Representation |
---|---|
bin | 11101110101010111101010… |
… | …111011110011101110010001 |
3 | 122012120122021001020100120012 |
4 | 131311113222323303232101 |
5 | 114144224404223104101 |
6 | 1143021242033124305 |
7 | 36431450233330205 |
oct | 3565275273635621 |
9 | 565518231210505 |
10 | 131210897472401 |
11 | 38898257a6465a |
12 | 128716740b9695 |
13 | 582a19977a3c6 |
14 | 24588d9b08b05 |
15 | 102816ad1ebbb |
hex | 7755eaef3b91 |
131210897472401 has 2 divisors, whose sum is σ = 131210897472402. Its totient is φ = 131210897472400.
The previous prime is 131210897472371. The next prime is 131210897472443. The reversal of 131210897472401 is 104274798012131.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 128773676926801 + 2437220545600 = 11347849^2 + 1561160^2 .
It is an emirp because it is prime and its reverse (104274798012131) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131210897472401 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 131210897472401.
It is not a weakly prime, because it can be changed into another prime (131210897472301) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65605448736200 + 65605448736201.
It is an arithmetic number, because the mean of its divisors is an integer number (65605448736201).
Almost surely, 2131210897472401 is an apocalyptic number.
It is an amenable number.
131210897472401 is a deficient number, since it is larger than the sum of its proper divisors (1).
131210897472401 is an equidigital number, since it uses as much as digits as its factorization.
131210897472401 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 677376, while the sum is 50.
The spelling of 131210897472401 in words is "one hundred thirty-one trillion, two hundred ten billion, eight hundred ninety-seven million, four hundred seventy-two thousand, four hundred one".
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